product information[Main material] steel, plastic tube, spring pieceCatheter length: about 50CM from the tee to the auscultation head【Technical Parameters】Frequency response curve: 100-500Hz based on the test sound source, the attenuation is not more than 12dB, and is not more than 20dB at 500-1000Hz.Spring piece hardness: HR15N82.9-884.Earrings: Two ears open 140mm, elastic 1.372-1.960N.Elastic earrings: open to 300mm with both ears, return after 1 minute, deformation is not more than 10mmFlat auscultation head diameter: 36mmCatheter length: 50 cm from the tee to the auscultation head[product function]: It is often used to auscultate the heart's heart and other organs. Sound changes: blood vessels, can be used to listen to heart rate, heart sounds, vascular murmurs, etc., respiratory system, can be used to listen to lung breath sounds, identify lung lesions when using blood pressure It is used to amplify the pulse sound for the doctor to diagnose. It can also be used to auscultate the heart sounds of the fetus.[Features]: 1. The head is stamped and hot forged, the tissue density is high, there will be no blisters, and the sound transmission will be clearer.2, the head and cover ring are processed by CNC numerical control lathe, high precision, high precision, no noise during auscultation
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